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Volume 15
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10.3390/coatings15040411
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Article

Modification of Polyurethane/Graphene Oxide with Dielectric Barrier Plasma Treatment for Proper Coating Adhesion on Fiberglass

by
Oscar Xosocotla
1,*,
Bernardo Campillo
2,
Horacio Martínez
3,*,
María del Pilar Rodríguez-Rojas
3,
Rafael Campos
1 and
Victoria Bustos-Terrones
4
1
The National Technological Institute of Mexico/CENIDET, Interior Palmira, S/N, Col. Palmira, 62490 Cuernavaca, Mexico
2
Faculty of Chemistry, National Autonomous University of Mexico, 04510 Mexico City, Mexico
3
Spectroscopy Laboratory, Institute of Physical Sciences, National Autonomous University of Mexico, 04510 Mexico City, Mexico
4
Environmental Engineering and Sustainability Research Laboratory, Polytechnic University of the State of Morelos, Boulevard Cuauhnáhuac 566, Col. Lomas del Texcal, 62574 Jiutepec, Mexico
*
Authors to whom correspondence should be addressed.
Coatings 2025, 15(4), 411; https://doi.org/10.3390/coatings15040411
Submission received: 14 February 2025 / Revised: 26 March 2025 / Accepted: 27 March 2025 / Published: 30 March 2025
(This article belongs to the Special Issue Plasma Coating and Interface Technology: New Horizons in Surface Science)
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Abstract

Wind turbine blades are made from fiberglass, whose faces are eroded due to environmental conditions. Polyurethane (PU) coatings are broadly used in several types of coatings due to their strong adhesion. However, their inferior mechanical properties limit their application on fiberglass. In this study, graphene oxide (GO) was modified through a dielectric barrier plasma (DBP) treatment at atmospheric pressure to improve the dispersion of GO in PU and increase its adhesion to fiberglass (GF) substrates, resulting in excellent adhesion properties of the PU/GO coating on fiberglass. Additionally, PU/GO coatings are crucial for preventing and protecting against erosion. The results obtained for the intensity ratio of the ID/IG peaks observed through Raman spectroscopy exhibited that the plasma treatment increased the defects in the GO structure through covalent and non-covalent interactions with the PU. Contact angle tests and surface free energy measurements indicated the deoxygenation of the GO structure, enhancing its dispersion in the PU matrix, as observed through XRD. The plasma treatment increased the PU/GO adhesion by 27.6% after 10 min of treatment, suggesting that more defects in the GO structure were correlated with greater adhesion strength.
Keywords: dielectric barrier plasma; adhesion; fiberglass; graphene oxide dielectric barrier plasma; adhesion; fiberglass; graphene oxide

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MDPI and ACS Style

Xosocotla, O.; Campillo, B.; Martínez, H.; Rodríguez-Rojas, M.d.P.; Campos, R.; Bustos-Terrones, V. Modification of Polyurethane/Graphene Oxide with Dielectric Barrier Plasma Treatment for Proper Coating Adhesion on Fiberglass. Coatings 2025, 15, 411. https://doi.org/10.3390/coatings15040411

AMA Style

Xosocotla O, Campillo B, Martínez H, Rodríguez-Rojas MdP, Campos R, Bustos-Terrones V. Modification of Polyurethane/Graphene Oxide with Dielectric Barrier Plasma Treatment for Proper Coating Adhesion on Fiberglass. Coatings. 2025; 15(4):411. https://doi.org/10.3390/coatings15040411

Chicago/Turabian Style

Xosocotla, Oscar, Bernardo Campillo, Horacio Martínez, María del Pilar Rodríguez-Rojas, Rafael Campos, and Victoria Bustos-Terrones. 2025. "Modification of Polyurethane/Graphene Oxide with Dielectric Barrier Plasma Treatment for Proper Coating Adhesion on Fiberglass" Coatings 15, no. 4: 411. https://doi.org/10.3390/coatings15040411

APA Style

Xosocotla, O., Campillo, B., Martínez, H., Rodríguez-Rojas, M. d. P., Campos, R., & Bustos-Terrones, V. (2025). Modification of Polyurethane/Graphene Oxide with Dielectric Barrier Plasma Treatment for Proper Coating Adhesion on Fiberglass. Coatings, 15(4), 411. https://doi.org/10.3390/coatings15040411

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